Sony STR-DB1070 Service Manual - Page 36

STR-DB870/DB1070 5-23. PRINTED WIRING BOARDS - POWER SUPPLY Section - • See page 14 for Circuit Boards Location. • Semiconductor 1 2 Location Ref. No. Location D51 D-7 D52 C-7 D53 C-7 D54 C-7 D55 B-7 D56 B-7 D57 B-7 D58 B-8 D901 F-2 D902 D-2 D903 G-3 D904 G-3 D905 G-3 D906 G-3 D907 F-1 D908 F-3 D912 E-2 D913 E-2 D914 B-3 Q51 D-7 Q52 B-8 Q53 B-8 Q54 D-7 Q902 F-2 Q903 D-2 Q904 F-2 Q905 F-2 A B U MAIN BOARD CN802 C (Page 26) DC1 BOARD F905 CN911 1 3 FH955 F906 FH956 (AEP, UK, E, CH) 1 CN910 5 D DC2 BOARD 3 4 FH905 (US, CND) (AEP, UK, E, CH) (US, CND) FH906 1 JW906 D914 4 JW901 (US, CND) C917 C918 C915 C916 C906 R904 B D902 C Q903 E R902 D912 C904 1 E D913 JW960 CN905 R909 R910 2 CN908 1 CN907 1 1 C909 3 1 R905 B DIGITAL BOARD F CN1106 (Page 21) D907 3 3 JW957 C912 1 1 Q905 R906 Q904 E R908 D901 C908 C905 R903 CN903 CN904 59 CP903 JW956 E 3 ECB Q902 C907 C901 CN901 CP904 71 JW955 C903 C902 G V MAIN CP902 BOARD CN804 1 (Page CN902 26) -1 -2 CN909 S901 IMPEDANCE SELECTOR 4Ω t 8Ω 5 FH954 4 D908 F904 F903 JW953 FH904 JW954 1 D906 D905 JW14 D904 D903 CP901 JW951 E (Page 21) DIGITAL BOARD CN1108 FH903 FH953 R912 R911 5 R913 C919 (AEP, UK, E, CH) CP951 11 1-681-092- (11) 6 1 CN906 11 1-681-093- (11) 6 7 (CHASSIS) AC BOARD C56 EB51 C52 C53 R53 D57 D55 D56 D54 D53 D52 C51 R54 D51 CN51 R55 1 5 E E C55 R56 Q54 R52 Q51 R51 T901 POWER TRANSFORMER 6 1 2 8 9 10 11 CNJ1 AC OUTLET (US, CND, E2, E3, TW, CH) Q53 E R57 Q52 E C54 R58 D58 T2 POWER TRANSFORMER (E2, E3) 4 CN3 1 2 CN1 FH6 FH7 F2 F1 (US, CND) JW3 FH2 FH1 (CHASSIS) 1 EB1 RY1 (E2, E3, TW) EXCEPT JW5 E2, E3 EXCEPT E2, E3, TW 1 CN2 2 R1 CP1 AC IN 11 1-681-091- (11) V. SWITCH BOARD VS49 VOLTAGE SELECTOR 240 t 220V t 120V 1 -1 JW59 JW60 CN49 -2 4 -3 JW61 5 CN48 FH48 F49 FH49 1 11 1-681-106- (11) 36 36